Ubuntu kernel development ()

Luis Henriques | 27 Jun 2012 11:59

[SRU][Precise][Quantal][PATCH 0/1] Fix sound on HP dv6

BugLink: http://bugs.launchpad.net/bugs/1013183

== SRU Justification ==

Commit 73b3c06f83fbc43b02f1fe8aa770c37c3becb463 ("ALSA: hda/idt - Fix
power-map for speaker-pins with some HP laptops") has been introduced
to the Precise kernel from a stable update.  However, this commit
breaks the sound on same HP laptops.

== Fix ==

A backport of commit 6e1c39c6b00d9141a82c231ba7c5e5b1716974b2 from
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git (branch
fix/hda) fixes this issue.

== Impact ==

Users with HP laptops with the SigmaTel STAC92xx (e.g., HP Pavilion
dv6 Notebook PC) will not be able to play audio.

== Test Case ==

Try to play some audio on a system that has a SigmaTel STAC92xx.

Takashi Iwai (1):
  ALSA: hda - Fix power-map regression for HP dv6 & co

 sound/pci/hda/patch_sigmatel.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(Continue reading)

headers

Luis Henriques | 27 Jun 2012 11:59

[PATCH 1/1] ALSA: hda - Fix power-map regression for HP dv6 & co

From: Takashi Iwai <tiwai <at> suse.de>

BugLink: http://bugs.launchpad.net/bugs/1013183

commit 6e1c39c6b00d9141a82c231ba7c5e5b1716974b2 upstream.

The recent fix for power-map controls (commit b0791dda813) caused
regressions on some other HP laptops.  They have fixed pins but these
pins are exposed as jack-detectable.  Thus the driver tries to control
the power-map dynamically per jack detection where it never gets on.

This patch corrects the condition check for fixed pins so that the
power-map is set always for these pins.

NOTE: this is no simple backport from 3.5 kernel.  Since 3.5 kernel
had significant code change in the relevant part, I had to fix this
differently.

BugLink: http://bugs.launchpad.net/bugs/1013183
Reported-by: Luis Henriques <luis.henriques <at> canonical.com>
Signed-off-by: Takashi Iwai <tiwai <at> suse.de>
(backported from commit 6e1c39c6b00d9141a82c231ba7c5e5b1716974b2 in
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git)
Signed-off-by: Luis Henriques <luis.henriques <at> canonical.com>
---
 sound/pci/hda/patch_sigmatel.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 0920803..b03fb00 100644

(Continue reading)

headers

Brad Figg | 27 Jun 2012 14:52

Ack: [SRU][Precise][Quantal][PATCH 0/1] Fix sound on HP dv6

On 06/27/2012 02:59 AM, Luis Henriques wrote:
> BugLink: http://bugs.launchpad.net/bugs/1013183
> 
> == SRU Justification ==
> 
> Commit 73b3c06f83fbc43b02f1fe8aa770c37c3becb463 ("ALSA: hda/idt - Fix
> power-map for speaker-pins with some HP laptops") has been introduced
> to the Precise kernel from a stable update.  However, this commit
> breaks the sound on same HP laptops.
> 
> == Fix ==
> 
> A backport of commit 6e1c39c6b00d9141a82c231ba7c5e5b1716974b2 from
> git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git (branch
> fix/hda) fixes this issue.
> 
> == Impact ==
> 
> Users with HP laptops with the SigmaTel STAC92xx (e.g., HP Pavilion
> dv6 Notebook PC) will not be able to play audio.
> 
> == Test Case ==
> 
> Try to play some audio on a system that has a SigmaTel STAC92xx.
> 
> Takashi Iwai (1):
>   ALSA: hda - Fix power-map regression for HP dv6 & co
> 
>  sound/pci/hda/patch_sigmatel.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

(Continue reading)

headers

Tim Gardner | 27 Jun 2012 15:03

APPLIED: [SRU][Precise][Quantal][PATCH 0/1] Fix sound on HP dv6


--

-- 
Tim Gardner tim.gardner <at> canonical.com